Home / 13,280,985.60-19,921,478.40-9,669,811.20

Finding the Fourth Proportional to 13,280,985.60, 19,921,478.40 and 9,669,811.20

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Solution

The fourth proportional to 13,280,985.60, 19,921,478.40 and 9,669,811.20 is: 14,504,716.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,280,985.60 : 19,921,478.40 = 9,669,811.20 : x
  2. Step 2: Convert to fraction form
    13,280,985.60/19,921,478.40 = 9,669,811.20/x
  3. Step 3: Cross multiply
    13,280,985.60x = 19,921,478.40 × 9,669,811.20
  4. Step 4: Simplify right side
    13,280,985.60x = 192,636,934,952,878.06
  5. Step 5: Solve for x
    x = 192,636,934,952,878.06/13,280,985.60
  6. Step 6: Final answer
    x = 14,504,716.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.